I bought this on ebay.

Bowers and Wilkins 702 S3.

It looks like the edges of the rubber on the woofers has wear. Looks as if some of the top layer got rubbed off? Or it's something else. This is present on the outer edge and inner edge all around on each bass woofer (3 bass woofers total).

Speaker seems to be working and sounding fine. I just wonder if it's going to last for a good amount of time. I got a different open box speaker from a different seller, to pair with this speaker, and the rubber on that one looks new, uniform, no wear.

Picked up some pioneer CS-06 for fun and trying to tune them up. They are in great shape but the capacitors definitely need to be replaced, and I'm having a hard time finding the right ones to buy. I definitely want some quality ones made for loudspeakers, like from ClairtyCap. Could someone help me with a link to buy the right ones? Need two 1.7uf 63v and two 7uf 63v. Thanks! First time doing audio work so any advice helps.

I was cleaning this unit after I received no sound and I noticed that r221 r206 and vr 201 are missing. I ended up printing a schematic for it and found no such parts in the diagram.